How to say "inevitably" in Japanese

• 余儀なくよぎなくCommon
  adverbCovers the central sense of 'inevitably': something happens unavoidably because circumstances leave no alternative, with a nuance of being forced into an outcome, as when an event must be called off.
• 必定ひつじょう
  na-adjective, adverb, nounPresents an outcome as a certainty bound to follow — closer to 'certainly' than to 'unavoidably'. Being less common, it is seldom the word you want for plain 'inevitably'.
• やむを得ずやむをえず
  expression, adverbUsed when someone acts because there is no avoiding it, so it shades into 'reluctantly': resigning or cancelling because no other course was possible, rather than for outcomes that simply follow.
  それはやむを得えず延期えんきされなければならない。↗

  It must, of necessity, be postponed.
• 否応なしにいやおうなしに
  expression, adverbAdds the nuance of 'whether one likes it or not': things happen regardless of one's wishes or consent, so its 'inevitably' stresses that the person has no say in the matter.
• 余業無くよぎょうなく
  adverbCarries the same meaning as 余儀なく, but it is a rare variant; for 'unavoidably; inevitably' this is seldom the word you want — 余儀なく is the form actually used.

Use 「余儀なく」 for outcomes forced by circumstances; 必定 for plain certainty; 「やむを得ず」 for actions taken reluctantly; 「否応なしに」 for what happens regardless of one's wishes; 「余業無く」 is a rare variant of 「余儀なく」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 余儀なくよぎなくunavoidably
• 必定ひつじょうinevitably
• やむを得ずやむをえずunavoidably
• 否応なしにいやおうなしにwhether one likes it or not
• 余業無くよぎょうなくunavoidably
• やむえずunavoidably
• 勢いいきおいnaturally